few q's: they inject the dye in with a needle and it spreads throughout? how many times does it take usually to color the whole fish? how much does it cost them to do this?
i never knew about this, the only thing i've seen dyed before was from this project in highschool where my teacher somehow injected dye into a chicken embryo and the chicks were different colors, is this the same process in a way? At my LFS, they have a few smaller fish with what appears to be numbers and symbols like hearts on their sides, are these fish going through the same thing?